Ride Height
I don't think you are going to be able to find any exact numbers. There are so many variables that would change the measurement. Your best bet would be to post a picture of the full side of the truck. It's fairly easy to tell when your springs are old and worn out. I would also add that off they are they factory springs, it's safe to say after 20 years of bouncing down the road, its time for new springs an an alignment.

